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    <title>Document</title>
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<style>
    li{
        list-style-type:none;
        color:white;
        background-color:black;
        width:200px;
        float:left; /*li水平方向显示*/
        line-height:40px;
        font-size:2em;

        cursor:pointer; /*鼠标从箭头变成了小手*/
    }

    li:hover{
        background-color:orange;
        line-height:60px;
    }
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<body>
    

    <ul>
        <li>斗罗大陆</li>
        <li>三国演义</li>
        <li>拉钩教育</li>
    </ul>
</body>
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